66 lines
2.2 KiB
Bash
66 lines
2.2 KiB
Bash
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#!/bin/bash
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# Exit on errors
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set -e
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# Configuration
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BACKUP_REPO_PATH="/mnt/backups"
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PASSWORD_FILE="/etc/restic-password"
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LOG_FILE="/var/log/backup_repo_check.log"
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# Ensure the log file exists
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mkdir -p "$(dirname "$LOG_FILE")"
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# Logging function
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log_message() {
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echo "[$(date +'%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
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}
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# Main function to check the backup repository
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check_backup_repo() {
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# Ensure the backup repository path exists
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mkdir -p "$BACKUP_REPO_PATH"
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# Validate or create the password file
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if [ ! -f "$PASSWORD_FILE" ]; then
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log_message "Password file not found. Creating a new one with a default password."
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echo "default-password" > "$PASSWORD_FILE"
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fi
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# Export the password and repository path for Restic
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export RESTIC_PASSWORD=$(cat "$PASSWORD_FILE")
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export RESTIC_REPOSITORY="$BACKUP_REPO_PATH"
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# Check if the repository contains files
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if [ "$(find "$BACKUP_REPO_PATH" -mindepth 1 | wc -l)" -gt 0 ]; then
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log_message "Checking the backup repository integrity and consistency."
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# Remove stale locks if they exist
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if [ -d "$BACKUP_REPO_PATH/locks" ] && [ "$(ls -A "$BACKUP_REPO_PATH/locks")" ]; then
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log_message "Stale lock detected in the repository. Removing lock."
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if ! restic -r "$BACKUP_REPO_PATH" unlock; then
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log_message "Failed to remove stale lock. Exiting."
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exit 1
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fi
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fi
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# Perform repository integrity check
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if ! restic -q -r "$BACKUP_REPO_PATH" check --read-data-subset=5%; then
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log_message "Repository integrity check failed. Please investigate."
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exit 1
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fi
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log_message "Backup repository integrity check passed."
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else
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# Initialize a new Restic repository if empty
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log_message "No files found in the backup repository. Initializing a new repository."
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if ! restic init -r "$BACKUP_REPO_PATH"; then
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log_message "Failed to initialize the backup repository. Exiting."
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exit 1
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fi
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log_message "Backup repository initialized successfully."
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fi
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}
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# Execute the function
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check_backup_repo
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